Hi,

Thanks Mark for getting back to me. After the migration from an older apple server the list password didn't migrate over, causing all of these issues.

So after all that it was an Apple Software issue.

I fixed all of the issues by removing the Mailman list (in server admin on the apple server), adding it back and setting up an administrative password.

Thanks for the help

Harley

From: Mark Sapiro [mark@msapiro.net] Sent: Wednesday, March 02, 2011 8:55 PM To: Harley Stevens; mailman-users@python.org Subject: Re: [Mailman-Users] Mailman limit

Harley Stevens wrote:

Is there a limit on how many users can be part of the mailing list group?

There shouldn't be, but it is possible to misconfigure things between Mailman and the MTA such that things don't work well when lists have too many members.

I'm running a Mac OS X 10.6 server that uses mailman

So maybe this is an issue for Apple?

and when I send mail via the mailing list to a group with 200+ users they keep getting multiple copies of the email ( up to 50 copies). I have to kill the mail system otherwise it would keep sending more copies.

I have created a new mailing list with the same users and it does exactly the same thing.

What do you see in various logs such as the MTA's logs and Mailman's smtp and smtp-failure logs?

My first guess is that the MTA is actually accepting some or all recipients of the message but is returning some status to Mailman indicating a retryable failure. If you have invalid local addresses on the list, this could be related to <http://bugs.python.org/issue5713>.

In any case, I suggest setting

SMTP_MAX_RCPTS = 10

in mm_cfg.py and restarting Mailman. That may help

On the other hand, if by "kill the mail system" you mean Postfix and not Mailman, then this may not be a Mailman issue at all.

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

##################################################################################### Disclaimer: The information in this electronic mail message together with any attachments is confidential. It is intended solely for the addressee. Access to this Internet electronic mail message by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it is prohibited and may be unlawful.

Hi,

Thanks Mark for getting back to me. After the migration from an older apple server the list password didn't migrate over, causing all of these issues.

So after all that it was an Apple Software issue.

I fixed all of the issues by removing the Mailman list (in server admin on the apple server), adding it back and setting up an administrative password.

Thanks for the help

Harley

From: Mark Sapiro [mark@msapiro.net] Sent: Wednesday, March 02, 2011 8:55 PM To: Harley Stevens; mailman-users@python.org Subject: Re: [Mailman-Users] Mailman limit

Harley Stevens wrote:

Is there a limit on how many users can be part of the mailing list group?

There shouldn't be, but it is possible to misconfigure things between Mailman and the MTA such that things don't work well when lists have too many members.

I'm running a Mac OS X 10.6 server that uses mailman

So maybe this is an issue for Apple?

and when I send mail via the mailing list to a group with 200+ users they keep getting multiple copies of the email ( up to 50 copies). I have to kill the mail system otherwise it would keep sending more copies.

I have created a new mailing list with the same users and it does exactly the same thing.

What do you see in various logs such as the MTA's logs and Mailman's smtp and smtp-failure logs?

My first guess is that the MTA is actually accepting some or all recipients of the message but is returning some status to Mailman indicating a retryable failure. If you have invalid local addresses on the list, this could be related to <http://bugs.python.org/issue5713>.

In any case, I suggest setting

SMTP_MAX_RCPTS = 10

in mm_cfg.py and restarting Mailman. That may help

On the other hand, if by "kill the mail system" you mean Postfix and not Mailman, then this may not be a Mailman issue at all.

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

##################################################################################### Disclaimer: The information in this electronic mail message together with any attachments is confidential. It is intended solely for the addressee. Access to this Internet electronic mail message by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it is prohibited and may be unlawful.